Title:
Roof construction
United States Patent 2577582


Inventors:
Hammitt, Andrew B.
Birum Jr., Herbert L.
Application Number:
US72626247A
Publication Date:
12/04/1951
Filing Date:
02/04/1947
Assignee:
Hammitt, Andrew B.
Birum Jr., Herbert L.
Primary Class:
Other Classes:
52/223.6, 52/489.1, 52/553, 52/640
International Classes:
E04B7/20
View Patent Images:
US Patent References:
2427021Prestressed all-metal roof structure1947-09-09
2183015Truss construction1939-12-12
0942955N/A1909-12-14
0398246N/A1889-02-19
0042229N/A1864-04-05